The cytological staining technique developed by Papanicolaou is still the standard method in cancer and hormone cycle diagnosis. The effect of the orange staining solution is considerable in smears with keratinized cells under acidic pH conditions, when the obvious orangeophilic cytoplasmic stain is recognizable and may point to the presence of hyperkeratosis, HPV infection or carcinoma cells. Papanicolaou's solution 2b, Orange II solution gives a intense reddish staining result with mature and keratinized squamous cells. Papanicolaou's solution 2a, Orange G solution gives a gentle yellow-orange staining result with mature and keratinized squamous cells. A 500 ml bottle is sufficient for 1500 to 2000 stainings. It is registered as IVD and CE product.
3204 12 00
0.83 g/cm3 (20 °C)
7.0 - 7.5 (H₂O, 20 °C)
Safety Information according to GHS
H225: Highly flammable liquid and vapour. H302 + H312 + H332: Harmful if swallowed, in contact with skin or if inhaled H319: Causes serious eye irritation. H370: Causes damage to organs.
P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P240: Ground/bond container and receiving equipment. P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P308 + P311: IF exposed or concerned: Call a POISON CENTER or doctor/ physician. P403 + P233: Store in a well-ventilated place. Keep container tightly closed.
3 Flammable liquids
WGK 1 slightly water endangering
1 Strongly contaminated halogen-free organic solvents: container A.
Categories of danger
highly flammable, toxic
R 11-23/24/25-39/23/24/25 Highly flammable.Toxic by inhalation, in contact with skin and if swallowed.Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed.
S 16-36/37-45 Keep away from sources of ignition - No smoking.Wear suitable protective clothing and gloves.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).